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Diagnosis Code

C44.99 OTHER SPECIFIED MALIGNANT NEOPLASM OF SKIN, UNSPECIFIED


Code Information

Diagnosis Code: C44.99

Short Description: Other specified malignant neoplasm of skin, unspecified

Long Description: Other specified malignant neoplasm of skin, unspecified

The code C44.99 is VALID for claim submission

Code Classification:

  • Neoplasms (C00–D49)
    • Melanoma and other malignant neoplasms of skin (C43-C44)
      • Other and unspecified malignant neoplasm of skin (C44)
        • C44.99 Other specified malignant neoplasm of skin, unspecified

Code Version: 2022 ICD-10-CM


Synonyms

  • Adenoid cystic eccrine carcinoma of skin
  • Angiosarcoma of skin
  • Apocrine adenocarcinoma of skin
  • Basal cell carcinoma with eccrine differentiation
  • Basosquamous carcinoma of skin
  • Basosquamous carcinoma of skin
  • Carcinosarcoma of skin
  • Clear cell eccrine hidradenocarcinoma
  • Cutaneous fibrosarcoma
  • Dermatofibrosarcoma protuberans
  • Dermatofibrosarcoma protuberans with giant cell fibroblastoma
  • Dermatofibrosarcoma protuberans with granular cell change
  • Dermatofibrosarcoma protuberans with myoid differentiation
  • Digital papillary eccrine carcinoma of skin
  • Eccrine carcinoma of skin
  • Eccrine ductal carcinoma
  • Eccrine porocarcinoma
  • Epithelioid cell sarcoma of skin
  • Epithelioid sarcoma
  • Epithelioid sarcoma
  • Extramammary Paget's disease of skin
  • Giant cell malignant fibrous histiocytoma of skin
  • Infantile fibrosarcoma
  • Inflammatory malignant fibrous histiocytoma of skin
  • Localized malignant reticulohistiocytoma
  • Lymphoepithelial tumor of skin
  • Malignant chondroid syringoma
  • Malignant cylindroma
  • Malignant eccrine spiradenoma
  • Malignant fibrohistiocytic tumor of skin
  • Malignant hemangiopericytoma of skin
  • Malignant skin tumor with apocrine differentiation
  • Malignant tumor of skin with pilar differentiation
  • Metastatic basal cell carcinoma
  • Metastatic basosquamous cell carcinoma to skin
  • Microcystic adnexal carcinoma
  • Mixed eccrine/pilar adnexal carcinoma of skin
  • Mucinous eccrine carcinoma of skin
  • Mucoepidermoid carcinoma of skin
  • Muir-Torré syndrome
  • Myxofibrosarcoma of skin
  • Myxoid dermatofibrosarcoma protuberans
  • Peripheral neuroepithelioma
  • Pigmented dermatofibrosarcoma protuberans of skin
  • Pilomatrix carcinoma of skin
  • Pleomorphic malignant fibrous histiocytoma of skin
  • Primary adenocarcinoma of skin
  • Primary adenoid cystic eccrine carcinoma of skin
  • Primary adnexal carcinoma of skin
  • Primary apocrine adenocarcinoma of skin
  • Primary carcinosarcoma of skin
  • Primary clear cell eccrine hidradenocarcinoma
  • Primary cutaneous fibrosarcoma
  • Primary digital papillary eccrine carcinoma of skin
  • Primary eccrine carcinoma of skin
  • Primary eccrine ductal carcinoma
  • Primary eccrine porocarcinoma
  • Primary epithelioid cell sarcoma of skin
  • Primary giant cell malignant fibrous histiocytoma of skin
  • Primary infantile fibrosarcoma
  • Primary inflammatory malignant fibrous histiocytoma of skin
  • Primary malignant chondroid syringoma
  • Primary malignant eccrine spiradenoma
  • Primary malignant fibrous histiocytoma of skin
  • Primary malignant neoplasm of sebaceous gland
  • Primary malignant neoplasm of sweat gland
  • Primary malignant neoplasm of sweat gland
  • Primary malignant neoplasm of sweat gland
  • Primary malignant neoplasm of sweat gland
  • Primary malignant neoplasm of sweat gland
  • Primary malignant neoplasm of sweat gland
  • Primary malignant neoplasm of sweat gland
  • Primary malignant neoplasm of sweat gland
  • Primary malignant sarcoma of skin
  • Primary microcystic adnexal carcinoma
  • Primary mixed eccrine/pilar adnexal carcinoma of skin
  • Primary mucinous eccrine carcinoma of skin
  • Primary mucoepidermoid carcinoma of skin
  • Primary myxofibrosarcoma
  • Primary myxofibrosarcoma of skin
  • Primary pleomorphic malignant fibrous histiocytoma of skin
  • Primary sebaceous adenocarcinoma
  • Primary signet ring cell carcinoma of skin
  • Primary small cell eccrine carcinoma
  • Primary superficial malignant fibrous histiocytoma of skin
  • Primary undifferentiated adnexal carcinoma of skin
  • Sebaceous adenocarcinoma
  • Small cell eccrine carcinoma
  • Superficial malignant fibrous histiocytoma of skin
  • Torré-Muir syndrome co-occurrent with malignant sebaceous neoplasm
  • Trichilemmal carcinoma
  • Undifferentiated adnexal carcinoma of skin

Diagnostic Related Group(s)

The code C44.99 is grouped in the following Diagnostic Related Group(s) (MS-DRG v39.0)
  • Minor Skin Disorders With Mcc (606)
  • Minor Skin Disorders Without Mcc (607)

Crosswalk Information

ICD-10 Code ICD-9 Code ICD-9 Description
C44.99 Right Arrow 173.99 Oth mal neo skn site NOS

This ICD-10 to ICD-9 data is based on the 2018 General Equivalency Mapping (GEM) files published by the Centers for Medicare & Medicaid Services (CMS) for informational purposes only. The data is not an ICD-10 conversion tool and doesn’t guarantee clinical accuracy.

Similar Codes

ICD-10 Code ICD-10 Description
C44 Other and unspecified malignant neoplasm of skin
C44.0 Other and unspecified malignant neoplasm of skin of lip
C44.00 Unspecified malignant neoplasm of skin of lip
C44.01 Basal cell carcinoma of skin of lip
C44.02 Squamous cell carcinoma of skin of lip
C44.09 Other specified malignant neoplasm of skin of lip
C44.1 Other and unspecified malignant neoplasm of skin of eyelid, including canthus
C44.10 Unspecified malignant neoplasm of skin of eyelid, including canthus
C44.101 Unspecified malignant neoplasm of skin of unspecified eyelid, including canthus
C44.102 Unspecified malignant neoplasm of skin of right eyelid, including canthus
C44.1021 Unspecified malignant neoplasm of skin of right upper eyelid, including canthus
C44.1022 Unspecified malignant neoplasm of skin of right lower eyelid, including canthus
C44.109 Unspecified malignant neoplasm of skin of left eyelid, including canthus
C44.1091 Unspecified malignant neoplasm of skin of left upper eyelid, including canthus
C44.1092 Unspecified malignant neoplasm of skin of left lower eyelid, including canthus
C44.11 Basal cell carcinoma of skin of eyelid, including canthus
C44.111 Basal cell carcinoma of skin of unspecified eyelid, including canthus
C44.112 Basal cell carcinoma of skin of right eyelid, including canthus
C44.1121 Basal cell carcinoma of skin of right upper eyelid, including canthus
C44.1122 Basal cell carcinoma of skin of right lower eyelid, including canthus
C44.119 Basal cell carcinoma of skin of left eyelid, including canthus
C44.1191 Basal cell carcinoma of skin of left upper eyelid, including canthus
C44.1192 Basal cell carcinoma of skin of left lower eyelid, including canthus
C44.12 Squamous cell carcinoma of skin of eyelid, including canthus
C44.121 Squamous cell carcinoma of skin of unspecified eyelid, including canthus
C44.122 Squamous cell carcinoma of skin of right eyelid, including canthus
C44.1221 Squamous cell carcinoma of skin of right upper eyelid, including canthus
C44.1222 Squamous cell carcinoma of skin of right lower eyelid, including canthus
C44.129 Squamous cell carcinoma of skin of left eyelid, including canthus
C44.1291 Squamous cell carcinoma of skin of left upper eyelid, including canthus
C44.1292 Squamous cell carcinoma of skin of left lower eyelid, including canthus
C44.13 Sebaceous cell carcinoma of skin of eyelid, including canthus
C44.131 Sebaceous cell carcinoma of skin of unspecified eyelid, including canthus
C44.132 Sebaceous cell carcinoma of skin of right eyelid, including canthus
C44.1321 Sebaceous cell carcinoma of skin of right upper eyelid, including canthus
C44.1322 Sebaceous cell carcinoma of skin of right lower eyelid, including canthus
C44.139 Sebaceous cell carcinoma of skin of left eyelid, including canthus
C44.1391 Sebaceous cell carcinoma of skin of left upper eyelid, including canthus
C44.1392 Sebaceous cell carcinoma of skin of left lower eyelid, including canthus
C44.19 Other specified malignant neoplasm of skin of eyelid, including canthus
C44.191 Other specified malignant neoplasm of skin of unspecified eyelid, including canthus
C44.192 Other specified malignant neoplasm of skin of right eyelid, including canthus
C44.1921 Other specified malignant neoplasm of skin of right upper eyelid, including canthus
C44.1922 Other specified malignant neoplasm of skin of right lower eyelid, including canthus
C44.199 Other specified malignant neoplasm of skin of left eyelid, including canthus
C44.1991 Other specified malignant neoplasm of skin of left upper eyelid, including canthus
C44.1992 Other specified malignant neoplasm of skin of left lower eyelid, including canthus
C44.2 Other and unspecified malignant neoplasm of skin of ear and external auricular canal
C44.20 Unspecified malignant neoplasm of skin of ear and external auricular canal
C44.201 Unspecified malignant neoplasm of skin of unspecified ear and external auricular canal
C44.202 Unspecified malignant neoplasm of skin of right ear and external auricular canal
C44.209 Unspecified malignant neoplasm of skin of left ear and external auricular canal
C44.21 Basal cell carcinoma of skin of ear and external auricular canal
C44.211 Basal cell carcinoma of skin of unspecified ear and external auricular canal
C44.212 Basal cell carcinoma of skin of right ear and external auricular canal
C44.219 Basal cell carcinoma of skin of left ear and external auricular canal
C44.22 Squamous cell carcinoma of skin of ear and external auricular canal
C44.221 Squamous cell carcinoma of skin of unspecified ear and external auricular canal
C44.222 Squamous cell carcinoma of skin of right ear and external auricular canal
C44.229 Squamous cell carcinoma of skin of left ear and external auricular canal
C44.29 Other specified malignant neoplasm of skin of ear and external auricular canal
C44.291 Other specified malignant neoplasm of skin of unspecified ear and external auricular canal
C44.292 Other specified malignant neoplasm of skin of right ear and external auricular canal
C44.299 Other specified malignant neoplasm of skin of left ear and external auricular canal
C44.3 Other and unspecified malignant neoplasm of skin of other and unspecified parts of face
C44.30 Unspecified malignant neoplasm of skin of other and unspecified parts of face
C44.300 Unspecified malignant neoplasm of skin of unspecified part of face
C44.301 Unspecified malignant neoplasm of skin of nose
C44.309 Unspecified malignant neoplasm of skin of other parts of face
C44.31 Basal cell carcinoma of skin of other and unspecified parts of face
C44.310 Basal cell carcinoma of skin of unspecified parts of face
C44.311 Basal cell carcinoma of skin of nose
C44.319 Basal cell carcinoma of skin of other parts of face
C44.32 Squamous cell carcinoma of skin of other and unspecified parts of face
C44.320 Squamous cell carcinoma of skin of unspecified parts of face
C44.321 Squamous cell carcinoma of skin of nose
C44.329 Squamous cell carcinoma of skin of other parts of face
C44.39 Other specified malignant neoplasm of skin of other and unspecified parts of face
C44.390 Other specified malignant neoplasm of skin of unspecified parts of face
C44.391 Other specified malignant neoplasm of skin of nose
C44.399 Other specified malignant neoplasm of skin of other parts of face
C44.4 Other and unspecified malignant neoplasm of skin of scalp and neck
C44.40 Unspecified malignant neoplasm of skin of scalp and neck
C44.41 Basal cell carcinoma of skin of scalp and neck
C44.42 Squamous cell carcinoma of skin of scalp and neck
C44.49 Other specified malignant neoplasm of skin of scalp and neck
C44.5 Other and unspecified malignant neoplasm of skin of trunk
C44.50 Unspecified malignant neoplasm of skin of trunk
C44.500 Unspecified malignant neoplasm of anal skin
C44.501 Unspecified malignant neoplasm of skin of breast
C44.509 Unspecified malignant neoplasm of skin of other part of trunk
C44.51 Basal cell carcinoma of skin of trunk
C44.510 Basal cell carcinoma of anal skin
C44.511 Basal cell carcinoma of skin of breast
C44.519 Basal cell carcinoma of skin of other part of trunk
C44.52 Squamous cell carcinoma of skin of trunk
C44.520 Squamous cell carcinoma of anal skin
C44.521 Squamous cell carcinoma of skin of breast
C44.529 Squamous cell carcinoma of skin of other part of trunk
C44.59 Other specified malignant neoplasm of skin of trunk
C44.590 Other specified malignant neoplasm of anal skin
C44.591 Other specified malignant neoplasm of skin of breast
C44.599 Other specified malignant neoplasm of skin of other part of trunk
C44.6 Other and unspecified malignant neoplasm of skin of upper limb, including shoulder
C44.60 Unspecified malignant neoplasm of skin of upper limb, including shoulder
C44.601 Unspecified malignant neoplasm of skin of unspecified upper limb, including shoulder
C44.602 Unspecified malignant neoplasm of skin of right upper limb, including shoulder
C44.609 Unspecified malignant neoplasm of skin of left upper limb, including shoulder
C44.61 Basal cell carcinoma of skin of upper limb, including shoulder
C44.611 Basal cell carcinoma of skin of unspecified upper limb, including shoulder
C44.612 Basal cell carcinoma of skin of right upper limb, including shoulder
C44.619 Basal cell carcinoma of skin of left upper limb, including shoulder
C44.62 Squamous cell carcinoma of skin of upper limb, including shoulder
C44.621 Squamous cell carcinoma of skin of unspecified upper limb, including shoulder
C44.622 Squamous cell carcinoma of skin of right upper limb, including shoulder
C44.629 Squamous cell carcinoma of skin of left upper limb, including shoulder
C44.69 Other specified malignant neoplasm of skin of upper limb, including shoulder
C44.691 Other specified malignant neoplasm of skin of unspecified upper limb, including shoulder
C44.692 Other specified malignant neoplasm of skin of right upper limb, including shoulder
C44.699 Other specified malignant neoplasm of skin of left upper limb, including shoulder
C44.7 Other and unspecified malignant neoplasm of skin of lower limb, including hip
C44.70 Unspecified malignant neoplasm of skin of lower limb, including hip
C44.701 Unspecified malignant neoplasm of skin of unspecified lower limb, including hip
C44.702 Unspecified malignant neoplasm of skin of right lower limb, including hip
C44.709 Unspecified malignant neoplasm of skin of left lower limb, including hip
C44.71 Basal cell carcinoma of skin of lower limb, including hip
C44.711 Basal cell carcinoma of skin of unspecified lower limb, including hip
C44.712 Basal cell carcinoma of skin of right lower limb, including hip
C44.719 Basal cell carcinoma of skin of left lower limb, including hip
C44.72 Squamous cell carcinoma of skin of lower limb, including hip
C44.721 Squamous cell carcinoma of skin of unspecified lower limb, including hip
C44.722 Squamous cell carcinoma of skin of right lower limb, including hip
C44.729 Squamous cell carcinoma of skin of left lower limb, including hip
C44.79 Other specified malignant neoplasm of skin of lower limb, including hip
C44.791 Other specified malignant neoplasm of skin of unspecified lower limb, including hip
C44.792 Other specified malignant neoplasm of skin of right lower limb, including hip
C44.799 Other specified malignant neoplasm of skin of left lower limb, including hip
C44.8 Other and unspecified malignant neoplasm of overlapping sites of skin
C44.80 Unspecified malignant neoplasm of overlapping sites of skin
C44.81 Basal cell carcinoma of overlapping sites of skin
C44.82 Squamous cell carcinoma of overlapping sites of skin
C44.89 Other specified malignant neoplasm of overlapping sites of skin
C44.9 Other and unspecified malignant neoplasm of skin, unspecified
C44.90 Unspecified malignant neoplasm of skin, unspecified
C44.91 Basal cell carcinoma of skin, unspecified
C44.92 Squamous cell carcinoma of skin, unspecified

This page was last updated on: 10/1/2023

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